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FOREWORD
ix
Features
The MODEL1722/1722C series work within our new product-network system
called the “NavNet.” Each product has an IP address to communicate with
NavNet compatible products within the network, using TCP/IP protocol through
an Ethernet 10 Base-T network.
The main features are
! Bright 7” screen visible even under direct sunlight.
! User friendly operation with combination of discrete keys, soft keys and
cursor pad.
! Accepts FURUNO and Nav-charts™ (NAVIONICS) or C-MAP charts.
! Fast chart redraw.
! Built-in NavNet interface circuit board.
! 12-channel GPS Receiver GP-310B with highly accurate position fixing
optionally available or GP-320B with WAAS (see the note in below.)
! User programmable function keys.
! Video sounder picture available with connection to optional network
sounder.
! ARP function (when connecting with MODEL1833/1833C series)
Note: WAAS, available in North America, is a system of satellites and ground
stations that provide GPS signal corrections, giving you better position accuracy,
typically within three meters. Other systems are currently under development:
Multi-Functional Satellite Augmentation System (MSAS) in Japan, and Euro
Geostationary Navigation Overlay Service (EGNOS) for Europe.
The systems will be compatible with each other, so that by selecting WAAS
below will enable reception of the signal from any system. Unless otherwise
specified this manual uses "WAAS" when referring to these position-fixing
systems.